Microsoft Says Goodbye to Classic Outlook: What You Need to Know

You know, I can’t help but have a little fun at Microsoft’s expense sometimes. But this one’s got me scratching my head. They’re getting rid of classic Outlook, the version that so many of us have grown to love and rely on.

What Happened?

Microsoft just announced they’re phasing out the classic version of Outlook for Windows, which has been around since 1998. It’s a big deal because this old-school email client is still very much in use by many small businesses. The new web-based version isn’t exactly winning over everyone—my team certainly doesn’t like it.

The classic version of Outlook will be gone for good by late 2026, which gives you some time to get used to the change. But let’s face it: this transition is going to cause a lot of headaches and confusion, especially with those beloved PST files that we’ve all come to know and love.

What This Means for Your Business

The villain here is clear: downtime and wasted hours as you and your team try to get up to speed on the new version. The classic Outlook has been a workhorse for so many businesses, but it’s time to face the music. If you’re still using PST files or just can’t stand the thought of switching over, this change is going to hit hard.

The cost isn’t just in lost productivity; there’s also the stress and frustration that comes with adapting to a new system. The old version was reliable and familiar, but now it’s time to move on and embrace—or at least tolerate—the new one.

What To Do This Week

• Take Inventory: Check if you’re still using the classic Outlook and what kind of data you have in PST files.
• Start Training: Get your team familiar with the new version now. It’s better to start early than to rush later.
• Contact ACS for Guidance: We can help make this transition smoother and ensure that everything goes as planned.

Questions about how this affects your setup? Schedule a free IT consultation and we’ll walk through it with you.